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Lost in Space

Age 14 to 16
Challenge Level Yellow star
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The idea of routes through triangular mazes can be adapted for a range of similar problems.

Is it possible to create different arrangements of numbers to give different families of solutions?

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Doodles

Draw a 'doodle' - a closed intersecting curve drawn without taking pencil from paper. What can you prove about the intersections?

Russian Cubes

I want some cubes painted with three blue faces and three red faces. How many different cubes can be painted like that?

N000ughty Thoughts

How many noughts are at the end of these giant numbers?

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The NRICH Project aims to enrich the mathematical experiences of all learners. To support this aim, members of the NRICH team work in a wide range of capacities, including providing professional development for teachers wishing to embed rich mathematical tasks into everyday classroom practice.

NRICH is part of the family of activities in the Millennium Mathematics Project.

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